<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
    <form action="http://localhost/php-project/part08-mysql2/index.php" method="post" style="width: 400px; margin: 300px auto;">
        用户名：<input type="text" name="username" id="">
        <br>
        年龄：  <input type="number" name="age" id="">
        <br>
        性别：  <select name="gender" id="">
            <option value="0">男</option>
            <option value="1">女</option>
            <option value="2">未知</option>
        </select>
        <br>
        <button type="submit">提交</button>
    </form>

</body>
</html>